Synthesis and properties of (Gum acacia/polyacryamide/SiO2) magnetic hydrogel nanocomposite prepared by gamma irradiation

Gum acacia/polyacrylamide (GA/PAAm) hydrogel was prepared using gamma radiation. The effect of preparation conditions such as radiation dose, copolymer composition, and initial feed concentration were investigated. The hydrogel of equal copolymer ratio was chosen for trapped SiO2 nanoparticles to prepare (GA/PAAm/SiO2) nanocomposite. In situ preparation of the magnetic nanocomposite and the magnetization was measured. Characterization of the prepared hydrogel and the nanocomposites was performed using (FT-IR), (FESEM), (HRTEM), (XRD), and (EDX). The elastic modulus and the hardness are sequence in order of; GA/PAAm/SiO2- MNC > GA/PAAm/SiO2> GA/PAAm. [GRAPHICS] .